Python String isalnum() 方法检查给定字符串中的所有字符是否都是字母数字。字母数字表示字母或数字的字符。
Syntax:
string_name.isalnum()
参数：
isalnum() method takes no parameters
Return:
- True: If all the characters are alphanumeric
- False: If one or more characters are not alphanumeric
例 1：isalnum() 的工作
Python
# Python program to demonstrate the use of
# isalnum() method
# here a,b and c are characters and 1,2 and 3
# are numbers
string = "abc123"
print(string.isalnum())
# here a,b and c are characters and 1,2 and 3
# are numbers but space is not a alphanumeric
# character
string = "abc 123"
print(string.isalnum())输出：
True False
相关用法
注：本文由纯净天空筛选整理自Striver大神的英文原创作品 Python String isalnum() Method。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。